Hey! Looks like exploiting the weaknesses of addicts and kidsdoes pay off: Investors are considering pouring another $250 million into gaming company Zynga, Inc. "in a deal that could value the three-year-old start-up at between $7 billion and $9 billion," according to The Wall Street Journal. That's right, the company behind Farmville is worth—according to always-rational investors—seven billion dollars. Time to short the human race. [WSJ]